transport in cells
- Created by: Muskaan Dhaliwal
- Created on: 05-08-19 14:46
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- transport in cells
- diffusion
- no energy required
- movement of particles in a solution or gas
- from higher to lower concentration
- the greater the difference in concentrations the faster the rate of diffusion
- e.g. gas exchange in the lungs or urea in the kidneys
- osmosis
- no energy required
- movement of particles from a dilute solution to a more concentrated solution
- e.g. plants absorbing water from the soil
- active transport
- energy is required
- movement of particles from a dilute solution to more concentrated
- e.g. movement of mineral ions into roots of plants
- diffusion
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